ARP 203-5403 Main Stud Kit for 1985-1991 Toyota MR2, 1987-1991 Toyota Celica GT

Vehicle Fitment

• 1985-1989 Toyota MR2 (AW11, 1.6L 4A-GE 16V)
• 1987-1989 Toyota Celica GT (T160, 1.6L 4A-GE 16V)
• 1988-1991 Toyota Camry Base (V10, 1.6L 4A-GE 16V)

Features

• Manufactured from 8740 chromoly steel
• Heat-treated to 190,000 psi tensile strength
• Precision J-form threads rolled after heat treatment
• Eliminates main cap walk and fretting
• Protects threads in the engine block
• Includes hardened parallel-ground washers
• Comes with high-quality nuts
• Facilitates easier engine assembly and proper alignment of caps

Specifications

• Socket Size: 12mm 12-point, 4mm Allen
• Material: 8740 chromoly steel
• Finish: Black oxide
• Tensile Strength: 190,000 psi
• Thread Type: J-form threads
• Compatibility: 2-bolt main caps
• Drivetrain: RWD

Included Components

• 10x Main studs
• 10x Parallel-ground washers
• 10x 12-point nuts
• 1x ARP assembly lubricant
• 1x Installation instructions

Product Description

The ARP 203-5403 Main Stud Kit is designed for Toyota 4A-GE 16V engines, specifically for the 1985-1989 Toyota MR2, 1987-1989 Toyota Celica GT, and 1988-1991 Toyota Camry Base models. This kit is ideal for high-performance applications where increased durability and reliability are essential.

Manufactured from 8740 chromoly steel and heat-treated to 190,000 psi tensile strength, these studs provide superior strength compared to OEM bolts. The precision J-form threads are rolled after heat treatment, creating threads that are 1000% stronger than standard studs. This design eliminates main cap walk and fretting, protecting the threads in your engine block.

The kit includes 10 main studs, 10 hardened parallel-ground washers, 10 high-quality nuts, ARP assembly lubricant, and installation instructions. The 12mm 12-point nuts require a 4mm Allen socket for installation. This comprehensive kit ensures a direct bolt-on application, making engine assembly easier and more precise.